Virginia lieutenant governor and Morrison & Foerster partner Justin Fairfax vehemently denied allegations of sexual assault Monday, even as a different political scandal appeared poised to unseat his boss and thrust him into the governorship.

Big League Politics, a political blog run by a former Breitbart News reporter, published a report Sunday tying Fairfax to an alleged sexual assault during the 2004 Democratic National Convention. The assault was described in a private Facebook post by a woman who did not name her alleged attacker.